Skip to main content

National Security Agency (NSA) Archive

Documents by and relating to the National Security Agency (NSA).

11,090
RESULTS
rss


PART OF
National Security Internet Archive (NSIA)
Additional Collections
Media Type
2
collections
11,086
texts
2
audio
Year
1
2017
1
2015
1
1975
1
1951
19
1948
26
1947
More right-solid
Topics & Subjects
11,087
NSA
11,084
National Security Agency
7,618
Cryptography
7,617
Friedman
7,617
William F. Friedman
2,692
SIGINT
More right-solid
Collection
More right-solid
Creator
7,617
william f. friedman
3,456
nsa
10
national security agency
1
committee on government operations
1
government
1
national reconnaissance office
More right-solid
Language
11,088
English
SHOW DETAILS
up-solid down-solid
eye
Title
Date Published
Creator
William F. Friedman NSA Collection
collection
7,617
ITEMS
304,718
VIEWS
collection
eye 304,718
The 7,000 William Friedman documents released by the NSA.
Venona Documents
collection
2,690
ITEMS
105,603
VIEWS
collection
eye 105,603
The Venona project was a counter-intelligence program initiated by the United States Army Signal Intelligence Service (a forerunner of the National Security Agency) that lasted from 1943 to 1980. The program decrypted messages sent by Soviet Union intelligence agencies, including its foreign intelligence service and military intelligence services. The project produced some of the most important breakthroughs for western counter-intelligence, including the discovery of the Cambridge spy ring and...
Topics: Venona, Venona files, Venona documents, SIS, Signal Intelligence Service, US Army, NSA, National...
Community Texts
texts
eye 12,009
favorite 0
comment 0
The Target Intelligence Committee (TICOM) was a high level agency formed by the United States to unite their cryptanalytic efforts with British counterparts in Bletchley Park. TICOM would often be sent into the field tasked to retrieve cryptographic material after battles ended, from both Axis and Soviet forces.  The majority of their reports were not declassified until 2009. Reports preserved here have been curated by Christos T riantafyllopoulos  for his Intel Corner blog and Randy Rezabek...
Topics: ticom, Cryptography, World War 2, World War II, Target Intelligence Committee, ENIGMA Machine,...
National Security Agency (NSA) Archive
by National Security Agency
texts
eye 3,873
favorite 1
comment 0
NSA UFO files
Topics: NSA, UFO, UFOs
CIA, NSA Files & White House Recordings relating to the Cuban Missile Crisis.
Topics: CIA, NSA, White House, National Security Agency, Central Intelligence Agency, Cuba, Cuban Missile...
National Security Agency (NSA) Archive
by National Security Agency
texts
eye 1,426
favorite 4
comment 1
Voynich Manuscript: An Elegant Enigma
favoritefavoritefavoritefavoritefavorite ( 1 reviews )
Topics: Voynich Manuscript, Voynich, NSA, National Security Agency
National Security Agency (NSA) Archive
texts
eye 1,366
favorite 1
comment 0
NSA Methodology for Adversary Obstruction
Topics: NSA, National Security Agency
Military Cryptanalytics, Part I, Monoalphabetic Substitution Systems; Friedman And Callimahos
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
National Security Agency (NSA) Archive
by NSA
texts
eye 1,122
favorite 1
comment 0
UFO
Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act
German Radio Intelligence (BY Albert Praun, Former Lt. Gen.); Dept. Of The Army Office Of The Chief Of Military History. Includes Nsa Memo And Comments On Report
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
National Security Agency (NSA) Archive
texts
eye 761
favorite 0
comment 0
Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act,...
National Security Agency Identification Badge System; Nsa Memorandum Number 120-23
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
William F. Friedman NSA Collection
texts
eye 715
favorite 2
comment 0
Basic Cryptography; Dept Of Army Technical Manual Tm32-220
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act,...
American Army Field Codes In The American Expeditionary Forces During The First World War
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
William F. Friedman NSA Collection
by William F. Friedman
texts
eye 642
favorite 2
comment 0
The Friedman Lectures On Cryptology
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Venona Documents
texts
eye 640
favorite 2
comment 0
The Venona Story
Topics: NSA, National Security Agency, Venona, Venona files, SIGINT, COMINT, Cold War
William F. Friedman NSA Collection
texts
eye 638
favorite 0
comment 0
Lisbonian Selection Of Roots And Terminals
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
William F. Friedman NSA Collection
texts
eye 579
favorite 0
comment 0
Oath For National Security Agency Employees
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Military Cryptanalysis, Part I, Monoalphabetic Substitution System; 4th Edition, Friedman , Revised And Enlarged By Callimahos
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
William F. Friedman NSA Collection
by William F. Friedman
texts
eye 498
favorite 0
comment 0
Division Field Code No.4
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
National Security Agency (NSA) Archive
by NSA
texts
eye 497
favorite 1
comment 0
Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act,...
National Security Agency (NSA) Archive
texts
eye 429
favorite 0
comment 0
Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act,...
War Secrets In The Ether Part Iii By Wilhelm F Flicke; Aspects Of Espionage And The Counterespionage Conducted On A Scale Never Before Known
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
National Security Agency (NSA) Archive
by NSA
texts
eye 402
favorite 0
comment 0
Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act,...
National Security Agency (NSA) Archive
by NSA
texts
eye 392
favorite 0
comment 0
Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act,...
William F. Friedman NSA Collection
texts
eye 376
favorite 0
comment 0
Codes And Ciphers (CRYPTOLOGY) Article By William F. Friedman
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Military Cryptanalysis Part Iv Transposition And Fractionating Systems By William F Friedman
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
War Secrets In The Ether Parts I And Ii By Wilhelm F Flicke; Part 1 The Period From The Inception Of The Intercept Service To The End Of Ww I; Part Ii - The Period Between The Two World Wars
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
National Security Agency (NSA) Archive
texts
eye 341
favorite 1
comment 1
favoritefavoritefavoritefavoritefavorite ( 1 reviews )
Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act,...
Telemetry Intelligence (TELINT) During the Cold War
Topics: NSA, TELINT, Telemetry, Cold War
National Security Agency (NSA) Archive
by NSA
texts
eye 331
favorite 1
comment 0
Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act,...
William F. Friedman NSA Collection
texts
eye 322
favorite 0
comment 0
German Military Ciphers From February To November 1918
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Statistical Methods In Cryptanalysis, Revised Edition. Register No. 193, Serial No. 1008; By Solomon Kullback
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Usa: Army Regulations, Classification Marking & Safeguarding Military Information, Friedman's Copies; S-028,297
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
National Security Agency (NSA) Archive
by National Security Agency
texts
eye 306
favorite 0
comment 0
179 pages of National Security Agency files covering the Cuban Missile Crisis. Files document NSA's human intelligence (HUMINT), photographic intelligence (PHOTINT), and signals intelligence (SIGINT) units intelligence coverage of Cuba and Soviet military support of Cuba. The signing of agreements with the Soviet Union and Czechoslovakia in mid-1960 was followed by a secret arms buildup in Cuba sponsored by the Soviets and their satellites. Early indications of that buildup came from signals...
Topics: NSA, National Security Agency, Cuba, Cuban Missile Crisis
Military Cryptanalytics, Part Ii, Interim Edition (FIRST Section): Periodic Polyalphabetic Substitution Systems; William F. Friedman And Lambros D. Callimahos
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Military Cryptanalytics, Part Ii, Interim Edition (SECOND Section); Lambros D. Callimahos And William F. Friedman
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
National Security Agency (NSA) Archive
texts
eye 289
favorite 0
comment 0
Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act,...
National Security Agency (NSA) Archive
texts
eye 284
favorite 0
comment 0
Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act, European...
William F. Friedman NSA Collection
texts
eye 284
favorite 0
comment 0
Study Of The Beale Papers, 15 August 1949
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
National Security Agency (NSA) Archive
texts
eye 283
favorite 0
comment 0
Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act,...
National Security Agency (NSA) Archive
by NSA
texts
eye 282
favorite 0
comment 0
Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act,...
National Security Agency (NSA) Archive
texts
eye 268
favorite 0
comment 0
Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act,...
National Security Agency (NSA) Archive
texts
eye 265
favorite 0
comment 0
Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act,...
Elements Of Cryptanalysis, Training Pamphlet No. 3; Prepared In The Office Of The Chief Signal Officer
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
National Security Agency (NSA) Archive
texts
eye 261
favorite 0
comment 0
Ask Beale 656725
Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act
Fundamentals Of Traffic Analysis (RADIO-TELEGRAPH); Department Of The Army Technical Manual Tm 32-250; Department Of The Air Force Manual Afm 100-80
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Excerpt From The Official Secrets Act, 1889; An Act To Prevent The Disclosure Of Official Documents And Information;
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
National Security Agency (NSA) Archive
by NSA
texts
eye 254
favorite 1
comment 0
JFK
Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act
William F. Friedman NSA Collection
texts
eye 252
favorite 0
comment 0
Field Codes Used By The German Army During The World War
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Military Cryptanalysis, Parts I And Ii: Monoalphabetic Substitution Systems
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
National Security Agency (NSA) Archive
texts
eye 246
favorite 1
comment 0
Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act,...
The Index Of Coincidence And Its Applications In Cryptanalysis; Technical Paper By William F. Friedman, War Department
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Russian Dictionary Reverse Alphabetic Sort; Nsa-725 Crypto-Linguistic Working Aid No.3
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Army Extension Courses, Special Text No. 165, Elementary Military Cryptography; 1935 Edition
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
National Security Agency (NSA) Archive
texts
eye 231
favorite 0
comment 0
Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act,...
William F. Friedman NSA Collection
texts
eye 230
favorite 2
comment 0
Friedman Letter To Hagelin; Voynich Manuscript
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Acme Commodity And Phrase Code Authorized For Use In Telegraphic Communications Between Germany And Foreign Countries, 27 September 1947
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
National Security Agency (NSA) Archive
texts
eye 227
favorite 1
comment 0
Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act,...
Codes And Ciphers (CRYPTOLOGY); Reprint Of Friedman's Article In Encyclopedia Britannica
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
William F. Friedman NSA Collection
texts
eye 224
favorite 0
comment 0
Military Cryptanalysis, Part Iii: Aperiodic Substitution Systems
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
National Security Agency (NSA) Archive
texts
eye 223
favorite 1
comment 0
Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act,...
William F. Friedman NSA Collection
texts
eye 217
favorite 2
comment 0
Synoptic Tables For The Solution Of Ciphers
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
The Contribution Of The Cryptographic Bureaus In The World War; By Yves Gylden - War Department Publication -
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
National Security Agency (NSA) Archive
texts
eye 210
favorite 0
comment 0
Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act
Military Cryptanalysis, Part Iv - Transposition And Fractionating Systems; By William F. Friedman For The War Department's Chief Signal Officer
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
National Security Agency (NSA) Archive
texts
eye 203
favorite 0
comment 0
Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act,...
Studies In German Diplomatic Codes Employed During The (FIRST) World War
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
National Security Agency (NSA) Archive
by NSA
texts
eye 198
favorite 0
comment 0
Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act,...
National Security Agency (NSA) Archive
by National Security Agency
texts
eye 198
favorite 0
comment 0
NSA Report on Russia Spearphishing
Topics: NSA, Russia, Russian hacking
William F. Friedman NSA Collection
by William F. Friedman
texts
eye 196
favorite 0
comment 0
Cryptanalytic Machines In Nsa
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Venona Documents
by NSA
texts
eye 196
favorite 0
comment 0
20apr maxwell
Topics: NSA, National Security Agency, Venona, Venona files, SIGINT, COMINT, Cold War
William F. Friedman NSA Collection
texts
eye 195
favorite 0
comment 0
Magic-Diplomatic Summary From The War Department
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
William F. Friedman NSA Collection
texts
eye 193
favorite 0
comment 0
Key List For German Army Enigma Machine
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman